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  <attribute name="title" value="Particle_number_concentration at Steamboat Springs, Colorado (Storm Peak Laboratory)" />
  <attribute name="summary" value="Particle_number_concentration at Steamboat Springs, Colorado (Storm Peak Laboratory). These measurements are gathered as a part of the following projects GAW-WDCA, NOAA-ESRL and they are stored in the EBAS database (http://ebas.nilu.no/). Parameters measured are: ['particle_number_concentration in aerosol (number_concentration_of_particles_in_dry_aerosol_particles_in_air)']" />
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    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
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    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="number_concentration_of_particles_in_dry_aerosol_particles_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="1/cm3" />
    <attribute name="ancillary_variables" value="qc_particle_number_concentration_perc8413 meta_particle_number_concentration_perc8413" />
    <attribute name="cell_methods" value="time: percentile:84.13" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-01-21T08:35:24.657252Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_statistics" value="percentile:84.13" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_station_code" value="US9050R" />
    <attribute name="ebas_platform_code" value="US9050S" />
    <attribute name="ebas_station_name" value="Steamboat Springs, Colorado (Storm Peak Laboratory)" />
    <attribute name="ebas_station_wdca_id" value="GAWAUSCOSPL" />
    <attribute name="ebas_station_gaw_id" value="SPL" />
    <attribute name="ebas_station_gaw_name" value="Steamboat Springs (CO)" />
    <attribute name="ebas_station_state_province" value="CO" />
    <attribute name="ebas_station_land_use" value="Forest" />
    <attribute name="ebas_station_setting" value="Mountain" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="4" />
    <attribute name="ebas_station_latitude" type="double" value="40.445" />
    <attribute name="ebas_station_longitude" type="double" value="-106.74" />
    <attribute name="ebas_station_altitude" value="3220.0 m" />
    <attribute name="ebas_measurement_latitude" type="double" value="40.455002" />
    <attribute name="ebas_measurement_longitude" type="double" value="-106.744003" />
    <attribute name="ebas_measurement_altitude" value="3220.0 m" />
    <attribute name="ebas_measurement_height" value="10.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="particle_number_concentration" />
    <attribute name="ebas_unit" value="1/cm3" />
    <attribute name="ebas_matrix" value="aerosol" />
    <attribute name="ebas_laboratory_code" value="US09L" />
    <attribute name="ebas_instrument_type" value="cpc" />
    <attribute name="ebas_instrument_name" value="TSI_3010_SPL" />
    <attribute name="ebas_instrument_manufacturer" value="TSI" />
    <attribute name="ebas_instrument_model" value="3010" />
    <attribute name="ebas_method_ref" value="US09L_cpc_ref" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Zero values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="US09L, &quot;Desert Research Institute, DRI-DAS-SPL, Division of Atmospheric Sciences / Storm Peak Laboratory&quot;, DRI-DAS-SPL, , &quot;P.O. Box 882530, , 80488, Steamboat Springs CO, USA&quot;, , , , " />
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    <attribute name="ebas_framework_contact_name" value="Markus Fiebig, Markus Fiebig" />
    <attribute name="ebas_framework_contact_email" value="Markus.Fiebig@nilu.no, Markus.Fiebig@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Hallar, Gannet, , , , , , , , , &quot;" />
    <attribute name="ebas_submitter" value="&quot;Hallar, Gannet, , , , , , , , , &quot;" />
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    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/aerosolparticlenumberconcentration" />
    <attribute name="actris_variable_preferred_term" value="aerosol particle number concentration" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/aerosolparticlephase" />
    <attribute name="actris_matrix_preferred_term" value="aerosol particle phase" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/condensationparticlecounter" />
    <attribute name="actris_instrument_type_preferred_term" value="condensation particle counter" />
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    <attribute name="actris_framework_preferred_term" value="GAW-WDCA, NOAA-ESRL" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
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  <variable name="qc_particle_number_concentration_perc8413" shape="qc_particle_number_concentration_perc8413_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
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  <variable name="meta_particle_number_concentration_perc8413" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="time" shape="time" type="double">
    <attribute name="long_name" value="time of measurement" />
    <attribute name="standard_name" value="time" />
    <attribute name="units" value="days since 1900-01-01T00:00:00Z" />
    <attribute name="axis" value="T" />
    <attribute name="calendar" value="standard" />
    <attribute name="bounds" value="time_bnds" />
    <attribute name="_CoordinateAxisType" value="Time" />
  </variable>
  <variable name="metadata_time" shape="metadata_time" type="double">
    <attribute name="long_name" value="time of ebas metadata intervals" />
    <attribute name="standard_name" value="time" />
    <attribute name="units" value="days since 1900-01-01T00:00:00Z" />
    <attribute name="axis" value="T" />
    <attribute name="calendar" value="standard" />
    <attribute name="bounds" value="metadata_time_bnds" />
    <attribute name="_CoordinateAxisType" value="Time" />
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</netcdf>
